Hardware :: Cannot See 2nd SATA Internal HDD After Partition In OS

I have Ubuntu 10.04 LTS just installed on my IDE 41Gb HDD. After installation, I plugged in a SATA 320 Gb HDD. I ran gparted, I partitioned the HDD in 3. It was recognized as sda1... I could see the 3 partitions in my "Places" renamed as I wanted, could see my IDE HDD and my external 1TB HDD. But after one day, computer was not turned off, I come back to it and... couldn't see what I previously had done (my 3 partitions on SATA just vanished?). I reset the PC and go in BIOS - nothing there. Turn off PC, reboot>BIOS> HDD SATA 2 recognized. Press F10 save, Ubuntu is up, but still no SATA hard disk. I go to gparted... no option with SATA. What can I do to have it back? I didn't mount anything since during partition I didn't have this option. This is what shows up now: (the 41 Gb HDD is now sda, before was sdb - I guess because it is smaller?)

bogdan@LORD:~$ sudo parted -l
[sudo] password for bogdan:
Model: ATA HDS728040PLAT20 (scsi)
Disk /dev/sda: 41.2GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 1049kB 39.4GB 39.4GB primary ext4
2 39.4GB 41.2GB 1734MB extended
5 39.4GB 41.2GB 1734MB logical linux-swap(v1)

Model: WD 10EAVS External (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 1000GB 1000GB primary fat32 lba

Warning: Unable to open /dev/fd0 read-write (Read-only file system). /dev/fd0
has been opened read-only.
Error: /dev/fd0: unrecognized disk label
bogdan@LORD:~$

I want to use my 2nd internal HDD for non-linux software and photos, videos, music (so a second storage).